SEIKO-Prospex Sea SFK001 lab created Blue uni-directional rotating elapsed timing

Blue uni-directional rotating elapsed timing bezel

A high-performance automatic sports chronograph in high-tech ceramic and stainless steel

Automatic with manual winding capability

BEZEL COLOR Blue

SEIKO-Prospex Sea SFK001 lab created Blue uni-directional rotating elapsed timingCaliber Number 5K65 Movement Type Solar Precision 15 seconds per month Jewels 3 Functions Overcharge prevention function Quick start function 24 hour hand (dual time display function) Calendar linked time difference adjustment function Date display Case Band Case Material Stainless steel Case Size Thickness: 13. 2mm Diameter: 45. 0mm Lug to lug: 51. 8mm Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite